Home / 188,455.11-259,979.52-111,976.53

Finding the Fourth Proportional to 188,455.11, 259,979.52 and 111,976.53

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Solution

The fourth proportional to 188,455.11, 259,979.52 and 111,976.53 is: 154,475.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,455.11 : 259,979.52 = 111,976.53 : x
  2. Step 2: Convert to fraction form
    188,455.11/259,979.52 = 111,976.53/x
  3. Step 3: Cross multiply
    188,455.11x = 259,979.52 × 111,976.53
  4. Step 4: Simplify right side
    188,455.11x = 29,111,604,520.67
  5. Step 5: Solve for x
    x = 29,111,604,520.67/188,455.11
  6. Step 6: Final answer
    x = 154,475.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.